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Titolo:
Endurance test of oxidation-resistant CVD-SIC coating on C/C composites for space vehicle
Autore:
Sekigawa, T; Oguir, K; Kochiyama, J; Miho, K;
Indirizzi:
Mitsubishi Heavy Ind Ltd, Nagoya Aerosp Syst, Nagoya, Aichi 4550024, JapanMitsubishi Heavy Ind Ltd Nagoya Aichi Japan 4550024 Aichi 4550024, Japan Natl Space Dev Agcy Japan, Off Space Transportat Syst, Chofu, Tokyo 1828522, Japan Natl Space Dev Agcy Japan Chofu Tokyo Japan 1828522 Tokyo 1828522, Japan
Titolo Testata:
MATERIALS TRANSACTIONS
fascicolo: 5, volume: 42, anno: 2001,
pagine: 825 - 828
SICI:
1345-9678(200105)42:5<825:ETOOCC>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
HIGH-TEMPERATURE OXIDATION; TO-PASSIVE TRANSITION; SILICON-CARBIDE; CARBON-CARBON; PROTECTION; NITRIDE;
Keywords:
silicon carbide; coating; oxidation; high-temperature; space vehicle; re-entry; air plasma flow;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Sekigawa, T Mitsubishi Heavy Ind Ltd, Nagoya Aerosp Syst, Nagoya, Aichi 4550024, Japan Mitsubishi Heavy Ind Ltd Nagoya Aichi Japan 4550024 24, Japan
Citazione:
T. Sekigawa et al., "Endurance test of oxidation-resistant CVD-SIC coating on C/C composites for space vehicle", MATER TRANS, 42(5), 2001, pp. 825-828

Abstract

C/C composites with an oxidation protection SIC coating have been evaluated by using high frequency air plasma Row at temperatures between 1554 and 1945K, and at pressures between 1.0 and 5.0 kPa. The oxidation behavior of the coatings after heating tests was investigated. The thickness reduction of the coating was 5.5 x 10(-2) mum s(-1) at 1945 K and 2.5 kPa. The coatingrecession was larger at higher temperatures and lower pressures. X-ray photoelectron spectroscopy of the coating surface indicated that SiO2 him was formed on the coating surface below 1856 K, and that high SiC recession rates were observed above 1884 K. At 2.5 kPa under subsonic plasma Row conditions, the active oxidation occurred above 1884 K and gradually changed from the passive oxidation with increasing temperature.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 09:54:45